EFFECTIVENESS OF ANTIOXIDANT PSIDIUM GUAJAVA L LEAF EXTRACT TO MINOR TYPE RECURRENT STOMATITIS AFTOSA (RAS): EFEKTIVITAS ANTIOKSIDAN EKSTRAK DAUN PSIDIUM GUAJAVA L TERHADAP STOMATITIS AFTOSA REKUREN (SAR) TIPE MINOR. Dentika Dental J. 2016, 19 (2), 142-148. https://doi.org/10.32734/dentika.v19i2.418.